Update buildroot submodule
diff --git a/buildroot b/buildroot
index c47a16f..6b2959c 160000
--- a/buildroot
+++ b/buildroot
@@ -1 +1 @@
-Subproject commit c47a16f94b6e365adabb248300330ef841b1de84
+Subproject commit 6b2959c880d08766a1ace9e14f6bb6272a7b4688